// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
 
namespace Microsoft.Extensions.Http.Logging.Bench;
 
internal sealed class NoRemoteCallNotSeekableHandler : DelegatingHandler
{
    private readonly byte[] _data;
 
    private NoRemoteCallNotSeekableHandler(byte[] data)
    {
        _data = data;
    }
 
    [SuppressMessage("Performance Analysis", "CPR120:File.ReadAllXXX should be replaced by using a StreamReader to avoid adding objects to the large object heap (LOH).",
        Justification = "We can live with it here")]
    public static NoRemoteCallNotSeekableHandler Create(string fileName)
    {
        var assemblyFileLocation = Path.GetDirectoryName(typeof(NoRemoteCallHandler).Assembly.Location)!;
        var uri = new Uri(assemblyFileLocation).LocalPath;
 
        var responseFilePath = Path.Combine(Directory.GetFiles(
            path: uri,
            searchPattern: fileName));
 
        var fileContent = File.ReadAllBytes(responseFilePath);
 
        return new NoRemoteCallNotSeekableHandler(fileContent);
    }
 
    protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        var response = new HttpResponseMessage
        {
            StatusCode = System.Net.HttpStatusCode.OK,
            RequestMessage = request,
            Content = new StreamContent(new NotSeekableStream(new MemoryStream(_data)))
        };
 
        response.Content.Headers.ContentType = new("application/json");
 
        return Task.FromResult(response);
    }
}